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From f14119502ee3301e1ae80b5ab7fbe1ba46580e23 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Wed, 1 Oct 2014 22:47:20 -0400
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Subject: [PATCH 65/74] Don't append an empty cert list to MokListRT if
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vendor_cert_size is 0.
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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shim.c | 63 ++++++++++++++++++++++++++++++++++-----------------------------
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1 file changed, 34 insertions(+), 29 deletions(-)
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diff --git a/shim.c b/shim.c
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index 4baf8b1..a282ee3 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -1698,37 +1698,42 @@ EFI_STATUS mirror_mok_list()
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if (efi_status != EFI_SUCCESS)
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DataSize = 0;
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- FullDataSize = DataSize
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- + sizeof (*CertList)
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- + sizeof (EFI_GUID)
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- + vendor_cert_size
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- ;
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- FullData = AllocatePool(FullDataSize);
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- if (!FullData) {
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- perror(L"Failed to allocate space for MokListRT\n");
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- return EFI_OUT_OF_RESOURCES;
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- }
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- p = FullData;
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+ if (vendor_cert_size) {
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+ FullDataSize = DataSize
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+ + sizeof (*CertList)
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+ + sizeof (EFI_GUID)
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+ + vendor_cert_size
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+ ;
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+ FullData = AllocatePool(FullDataSize);
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+ if (!FullData) {
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+ perror(L"Failed to allocate space for MokListRT\n");
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+ return EFI_OUT_OF_RESOURCES;
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+ }
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+ p = FullData;
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- if (efi_status == EFI_SUCCESS && DataSize > 0) {
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- CopyMem(p, Data, DataSize);
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- p += DataSize;
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+ if (efi_status == EFI_SUCCESS && DataSize > 0) {
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+ CopyMem(p, Data, DataSize);
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+ p += DataSize;
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+ }
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+ CertList = (EFI_SIGNATURE_LIST *)p;
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+ p += sizeof (*CertList);
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+ CertData = (EFI_SIGNATURE_DATA *)p;
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+ p += sizeof (EFI_GUID);
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+
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+ CertList->SignatureType = EFI_CERT_X509_GUID;
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+ CertList->SignatureListSize = vendor_cert_size
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+ + sizeof (*CertList)
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+ + sizeof (*CertData)
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+ -1;
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+ CertList->SignatureHeaderSize = 0;
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+ CertList->SignatureSize = vendor_cert_size + sizeof (EFI_GUID);
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+
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+ CertData->SignatureOwner = SHIM_LOCK_GUID;
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+ CopyMem(p, vendor_cert, vendor_cert_size);
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+ } else {
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+ FullDataSize = DataSize;
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+ FullData = Data;
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}
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- CertList = (EFI_SIGNATURE_LIST *)p;
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- p += sizeof (*CertList);
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- CertData = (EFI_SIGNATURE_DATA *)p;
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- p += sizeof (EFI_GUID);
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-
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- CertList->SignatureType = EFI_CERT_X509_GUID;
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- CertList->SignatureListSize = vendor_cert_size
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- + sizeof (*CertList)
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- + sizeof (*CertData)
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- -1;
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- CertList->SignatureHeaderSize = 0;
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- CertList->SignatureSize = vendor_cert_size + sizeof (EFI_GUID);
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-
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- CertData->SignatureOwner = SHIM_LOCK_GUID;
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- CopyMem(p, vendor_cert, vendor_cert_size);
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efi_status = uefi_call_wrapper(RT->SetVariable, 5, L"MokListRT",
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&shim_lock_guid,
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--
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1.9.3
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